using System;
using System.Collections.Generic;
using System.Text;

namespace calculatorapp
{
    class cls_parket
    {

        double wf_phantram(double x)
        {
            double temp;
            temp = x/100;
            return temp;
        }

        double wf_chiasox(double x)
        {
            double temp;
            temp = 1/x;
            return temp;
        }

        double wf_canbathai(double x)
        {
            double temp;
            temp = Math.Sqrt(x);
            return temp;
        }


    }
}
